package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService attrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }


    /**
     * TODO 保存失败导致的异常高级部分完善
     *
     * @param vo
     */
    @Transactional // 开启回滚
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        // 1、保存spu基本信息 pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, spuInfoEntity);
        this.saveBaseSpuInfo(spuInfoEntity);

        // 2、保存spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(spuInfoEntity.getId());
        descEntity.setDecript(String.join(",", decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        // 3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(), images);

        // 4、保存spu的规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> valueEntities = baseAttrs.stream().map((attr) -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setSpuId(spuInfoEntity.getId());
            valueEntity.setAttrId(attr.getAttrId());
            // 循环查库哈哈
            AttrEntity byId = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(byId.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(valueEntities);

        // 5、保存spu的积分信息 gulimall_sms：sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo); // 远程服务
        
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }
        // 5、保存当前spu对应的所有sku信息
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            // private String skuName;
            // private BigDecimal price;
            // private String skuTitle;
            // private String skuSubtitle;
            skus.forEach(item -> {
                // 默认图片
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item, skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg); // 默认图片
                // skuInfoEntity.setSkuDesc();
                // 5.1、sku的基本信息，pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();// 自增主键,保存之后可以拿到
                List<Images> itemImages = item.getImages();
                List<SkuImagesEntity> imagesEntities = itemImages.stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(img -> {
                    // 返回true表示需要，返回false表示过滤掉
                    return !StringUtils.isEmpty(img.getImgUrl());
                }).collect(Collectors.toList());
                // 5.2、sku的图片信息，pms_sku_images
                // TODO 没有图片路径的无需保存
                skuImagesService.saveBatch(imagesEntities);

                List<Attr> attrs = item.getAttr();
                List<SkuSaleAttrValueEntity> attrValueEntities = attrs.stream().map(attr -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(attr, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);
                    return attrValueEntity;
                }).collect(Collectors.toList());
                // 5.3、sku的销售属性，pms_sku_sale_attr_value
                skuSaleAttrValueService.saveBatch(attrValueEntities);

                // 5.4、sku的优惠、满减信息(远程服务)：
                // gulimall_sms：sms_sku_ladder  sms_sku_full_reduction  sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }

    }


    /**
     * 保存spu基础属性
     *
     * @param spuInfoEntity
     */
    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }


    /**
     * 商品列表查询以及自定义条件查询
     *
     * @param params
     * @return
     */
    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        LambdaQueryWrapper<SpuInfoEntity> wrapper = new LambdaQueryWrapper<>();
        /**
         * status: 0
         * key:
         * brandId: 16
         * catelogId: 225
         */
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and(w -> {
                w.eq(SpuInfoEntity::getId, key)
                        .or()
                        .like(SpuInfoEntity::getSpuName, key)
                        .or()
                        .like(SpuInfoEntity::getSpuDescription, key);
            });
        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.and(w -> {
                w.eq(SpuInfoEntity::getCatalogId, catelogId);
            });
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.and(w -> {
                w.eq(SpuInfoEntity::getBrandId, brandId);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.and(w -> {
                w.eq(SpuInfoEntity::getPublishStatus, status);
            });
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );
        return new PageUtils(page);
    }

}